Printing device.



WI TNESSES:

A. G. OGDEN.

PRINTING DEVICE.

APPLICATION HLED OCT. 9, I915.

Patented Sept. 26, 1916 3 SHEETS-SHEET I.

* INVENTOR //\s'///( y 0. Qyd

4 gym ATTORNEYS A.-G. OGDEN.

PRINTING DEVICE.

APPLICATION FILED OCT. 9. 1915.

Patented Sept. 26, 1916.

3 SHEETSSHEET 2- A. G. OGDEN.

PRINTING DEVICE.

APPLICATION FILED OCT. 9, 1915.

Patented Sept. 26, 1916.

3 SHEETS-SHEET 3 M M W N l UNITED STATES PATENT OFFICE.

ASHLEY GUY OGDEN, 0F BALTIMORE, MARYLAND, ASSIGNOR TO THE MULTIPLE OFF-SET MACHINE COMPANY, INC., OF BALTIMORE, MARYLAND.

PRINTING DEVICE.

Specification of Letters Patent.

Application filed October 9, 1915. Serial No. 55,046.

To all whom it may concern Be it known that I, ASHLEY G. OGDEN, a citizen of the United States, and a resident of the city of Baltimore, in the State of Maryland, have invented a certain new and useful Improvement in Printing Devices, of which the following is a specification.

My invention relates to printing devices forreproducing a multiplicity of prints arranged in symmetrical relation, from a single negative.

he present application is an improvement on the device which forms the subject of a prior application, Serial No. 37524, filed Julyl, 1915. In said prior applicatipnrI disclosed a device in which the prints were designed to be made so that the designs were accurately spaced-in symmetrical relation.

The primary object of the present invention is to provide an improved device in which the accurate spacing of the design is easily accomplised. To this end I arrange a holding means for the negative from which the prints are to be made and have indicating'devices which may be brought into registration with certain marks on the negative, and afterward be lifted therefrom, and again brought into osition over another negative having simi or marks, so that the latter marks may be brought into registration with the indicating devices.

A further object of my invention is to rovide a means for more accurately adusting the step by step device by means of which a sensitized plate is shifted from one position to another, with respect to a stationary negative.

Other objects and advantages will appear in the following specification, and the novel features of the invention will be particularly pointed out in the appended claims.

My'invention is illustrated in the accompanying drawings forming part of this application, in which:

Figure 1 is a plan view of the device. Fig. 2 is a section alon the line 2-2 of Fig. 1. Fig. 3 is a section along the line 33 of Fig. 1. Fig. 4 is a section along the line 44 of Fig. 1. Fig. 5 is a section along the line 5-5 of Fig. 1. Fig. 6 is a section alon the line 66 of Fig. 1. Fig. 7 is a detail plan view showing the indicating de of the bed plate is a U-shaped bracket 3 which is provided with slotted extensions 4 at each end thereof, arranged to receive the slotted ends 5 of a cross bar 6. The

central portion of this crossbar 6 bears a pair of upstanding bracket members 7, see Fig. 3, in which the cylindrical ends 8 of a cam member 9 are journaled. As will be seen from Fig. 2, this cam member is circular, but the journaled portions 8 are disposed off-center. member 9 is arranged to bear upon a plunger 10 which passes through the body portion of the cross bar 6 and which bears a swiveled head 11 faced with some resilient material 12, such as rubber or the like. A handle 13 is provided for manipulating the cam 9. It will be seen that on turning the handle in the direction indicated by the curved arrow in Fig 2, the plungeay 10 with its resiliently faced head 11 will be forced downwardly against a plate 14.;

At diagonally opposite corners of the head 11 rods 15 pass through the plate 6 and are connected to the head, springs 16 being provided above the plate, these springs exerting tension on the rod 15 so as to cause the plate 11 to be lifted when the handle 13 is thrown over into the dotted line position shown in Fig. 2.

The plate 1 is provided with an opening 17, see Fig. 2. this opening being bordered by shoulders 18 upon which the transparent negative-supporting plate 19 rests. The

base plate 1 is provided with upwardly ex-' The edge of the cam therein a rectangular frame 2-1, one side of which is provided with a rack 25. The frame 21 as will be seen from Fig. 2, has a V-shaped bottom which rests in a groove 25 in the base plate 1, thus permitting the frame 24 to slide relatively to the base plate. A cross bar 26 is carried by the frame 24 and is provided with a V-shaped groove 27 arranged to receive a bar 28 which is slidable in the groove. Secured to the bar 28 by means of set screws 29 are the clamping members 29, see Fig. 6, and to each clamping member is pivotally connected a grooved arm 30, the grooves in the arms 30 facing each other in order to receive and hold the sensitive plate 14. A cross member 31 is provided for holding the outer ends of the arms 30 in spaced relation. Holes 32 are provided for shifting the position of the cross member 31 with respect to the arms 30. Set screws or pins 33 are provided for holding the cross member 31 in position. The clamping member 2!) may be shifted along th bar 28 by loosening the set screws 29.

(arried by the base plate 1 is an extension 1" which is provided with a pair of parallel grooves 1 see Fig. 5, arranged to receive tongues of a bracket 35 which bears a screw 36 having its ends swiveled into a pivoted clamping member 37 adapted to engage the teeth 25 of the side member of the frame 24, so as to clamp the bracket securely to the side member in adjusted position. An extension 38 of the bracket 35 is arranged to engage a stop member 40. or the end of a micrometer screw 41 which is threaded at 42 in a fixed portion of the extension 1*. The puriose of this construction will be explame later.

The plate 26 has an extension 26" which is provided with a micrometer 43 and with all adjustable stop member 44 adapted to engage the micrometer screw 43 in the same manner that the stop member 39 engages the micrometer screw 41.

In Figs. 1 and 4 l have shown a means for shifting the frame 24. 'This consists of a hand wheel 45 which is connected with the pinion 1G in mesh with the rack 2.") of the frame 24. The turning of the hand wheel will obviously shift the rack in either direction.

In executing very fine times necessary to center the negative with extreme accuracy. and to this end 1 provide a cut. a way portion 1" of the base. 1 in which l. dispo ed a U-shaped frame 47 whose sides arc cm-xtensivc with the flanges 20. This Ushaped frame is hinged at 48 and bears pointers 41 which are slotted as shown at 54) and which are provided with screws or pins .71 which permit the pointers to be moved inwardly or outwardly and to work it is somebe clamped in diti'erent angular positions with respect to the side members of the rame.

From the foregoing description of the various parts of the device, the operation there of may be readily understood.

A negative 22 is made and is placed in positioii upon the transparent plate 1.9 just above the opening 17. As will be seen from the drawings there is a light housing 52 in which an incandescent light 53 is disposed so that the light shines directly on the plate 19 bearing the negative. The plate 14 having a sensitized surface is now placed in the frame formed by the grooved arms 30 and the cross member 31. the distance between the arms 30 being adjusted in the manner described to retain the sensitized plate in position. The position of the plate is adjusted so that the negative is preferably located adjacent to one corner of the plate in beginning the operation. The handle 13 of the clamping device is now swung to the full line position shown in Fig. 2, thus clamping the plate down upon the negative, when an exposure may be made. After the exposure the handle 13 is swung to the dotted line position shown in Fig. 2, thus unclamping the plate. The micrometer devices carried by the extension 1 and 26 may be adjusted so as to permit a movement of the frame :24 and of the arms 30 at right angles to the movement of the frame 24 to any desired distance. and this distance is very accurately gaged because of the fact that a micrometer is employed. The stop members 38 and 44 may be adjustably se cured to the frame 24 and the rod 28 respectively in the manner already described. An exposure is made and then the stop member 44. for instance. may be shifted the distance between the jaws of the micrometer. and the device may be again attached to the bar 28 so that when the frame is moved the sensitized plate will be carried a given distance and no farther. Similarly the stop member 38 may be shifted from one point, as for instance from the, end of the screw 42 to the end of the stop member 40 and again secured to the frame, so that when the frame is moved it will be moved a given distance, or the distance between the screw 42 and the stop member 40. In this manner, a row of prints may be taken and then another row and additi nal rows. all of which contain prints which are symmetrically spaced, this spacing being very accurately gaged. It is obviously immaterial whether the prints are made in rows or columns.

In certain instances it is of tancc to have the negative tioned and to this end the already described is great imporaccurately posiindicating device provided. It will he negative is to be removed and another one,

geither larger .or smaller, replaced, it may" bedesirable to have the'second negative in the same relatiye': position as in the first one. This second inegative would have marks 22 corresponding to the marks shown in the ,drawing. Prior to the removal of the first hegative, the frame 47 bearing the indicating devices 4 was swung on its hinges and the points of the indicating devices 49 were made to register with the marks 22* as shown in Fig. 7. The frame 47 is now swung back into its original position, and when the second negative is substituted for the first, the frame ls'again swung over so that the pointers will indicate where the second negative is to be placed. The adjustment of the negative is accomplished by means of the screws 23. Obviously'the pointer's49 may be shifted so as register with any point on the negative so that if the latter is removed and replaced it may be replaced in exactly the same position. V

In Figs. 10 andll I have shown a moditied form of the spacing mechanism. In this form a clamping member which I have denoted in general by 54 and which bears a stop member 54, may be secured to the slida-ble'frame 24., the member 54 sliding on the base 1 in the manner shown in Fig. 11. 1 Xt55 and 5,5 I have showntwo stop members which, as will" be seen, are dove-tailed into a groove 56 in the extension 1, each of these-stop members being provided with a set screw 57 for clampingit' in -position. The bevelededge of a scale 58 furnishes means whereby the distance-between the stop members and 55 may be accurately.

gaged. A I

-;It is obvious that. tbeframe 24 may be nioved either by hand or' by the wheel 45, while the bar 28 is preferably moved by band.

I claim 7 1. In a printing device, a base, a source of light carried thereby, a negative carried by-said base and disposed withinthe field of said source oflight, a frame mounted on said base, means for shifting said frame relatively to said negative in two directions at right angles to each other, means on said base for adjusting the position of the negative with respect to the base, and indicating means connected to the last named means for indicating the precise position to which thc negative is adjusted.

2. In a printing device, a base, a source of light carried thereby, a negative, means carried by said base for adjustably holding said negative, andindicating means carried by said base and adapted to be brought into registration with portions of the" negative for indicating the position of the'negative with respect'to the base, a frame on said base for adjustably supporting a sensitized plate, and means for shifting said frame relatively to said negative.

3. In a printing device, a base, a source of light carriedthereby, a negative, means carried by said base for adjustably holding said negative within the field of said source of light, a frame on said base; for adjustably supporting a sensitized plate, means for shifting said frame relatively to said negative, and an indicating device hinged to said frame, adapted to be brought into registration with portions of the negative for indicating the" position o'f"thfnegative with respect to the base.

4. In a. rinting device, a base, a source of light'mrried thereby, a negative, means carried by said base for adjustably lholding said negative within the field-of'said'source of light, a frame on said base for ,adjustably supporting a. sensitized. plate,: means for shifting said frame relatively to said negative, and a hinged frame having an adjustable indicating member adapted r to be brought into registration with certain portions of the negative-for indicating the position of the negative with respect to the-base.

5. In a printingdevice, a base, a source of light carried thereby, a negative, rn'eans carried by said basefor adjustably holding .said negative within the 'field of saidsourc'e of light, a: frame onsaid base for adjust ably supporting a'sen'sitized plate, -means forshifting said frame relatively to said negative, a frame hinged to thefirst named means, a plurality of I adjustable pointers carried by said hinged frame, the ends of said pointers being adapted to register with portions of the negative whereby the rela- Live position of the negative with respect to the basc'may be recorded.

6. In a printing device, a base, a source of light carried thereby, a negati've', means carried by said base for adjustably'holding said negative within the field of said source of light, a frame on said base for adjust.-

ably supporting a sensitized plate, means for shifting said frame relatively to said negative, a frame hinged to first namedmcans, a plurality of pointers carried by said hinged frame, each of said pointers being provided with a longitudinal slot, a set screw arranged to enter said slot, said pointers being pivotally and longitudinally movable with respect to said set screw.

7. In a printing device, a. base, a source of light carried thereby, a negative adjustably carried by said base and disposed within the field of said source of light, a frame on said base for adjustably supporting a sensitized plate, means including a stop member carried by the frame and a micrqmeter carried by the base for moving sensitized platefa stop member adjustably said frame a predetermined distance. secured to said frame, a. screw micrometer 8. In a, printing device, a base, a source secured to said base, said stop member being 10 of light carried thereby, a negative adjustnormally disposed between the jaws of said v ably carried by said base and disposed with screw micrometer and adapted to limit the in the field of said source of light, a frame movement of the frame. on said base for adjustably supporting a ASHLEY GUY'OGDEN. 

